crypto: x86/glue_helper - use le128 instead of u128 for CTR mode
'u128' currently used for CTR mode is on little-endian 'long long' swapped
and would require extra swap operations by SSE/AVX code. Use of le128
instead of u128 allows IV calculations to be done with vector registers
easier.
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c
index 3f543a0..2aa31ad 100644
--- a/arch/x86/crypto/serpent_avx_glue.c
+++ b/arch/x86/crypto/serpent_avx_glue.c
@@ -56,19 +56,19 @@
u128_xor(dst + (j + 1), dst + (j + 1), ivs + j);
}
-static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, u128 *iv)
+static void serpent_crypt_ctr(void *ctx, u128 *dst, const u128 *src, le128 *iv)
{
be128 ctrblk;
- u128_to_be128(&ctrblk, iv);
- u128_inc(iv);
+ le128_to_be128(&ctrblk, iv);
+ le128_inc(iv);
__serpent_encrypt(ctx, (u8 *)&ctrblk, (u8 *)&ctrblk);
u128_xor(dst, src, (u128 *)&ctrblk);
}
static void serpent_crypt_ctr_xway(void *ctx, u128 *dst, const u128 *src,
- u128 *iv)
+ le128 *iv)
{
be128 ctrblks[SERPENT_PARALLEL_BLOCKS];
unsigned int i;
@@ -77,8 +77,8 @@
if (dst != src)
dst[i] = src[i];
- u128_to_be128(&ctrblks[i], iv);
- u128_inc(iv);
+ le128_to_be128(&ctrblks[i], iv);
+ le128_inc(iv);
}
serpent_enc_blk_xway_xor(ctx, (u8 *)dst, (u8 *)ctrblks);